diff options
| -rw-r--r-- | indra/llui/llflatlistview.cpp | 63 |
1 files changed, 62 insertions, 1 deletions
diff --git a/indra/llui/llflatlistview.cpp b/indra/llui/llflatlistview.cpp index 35f5a6bbb9..82f054c4b7 100644 --- a/indra/llui/llflatlistview.cpp +++ b/indra/llui/llflatlistview.cpp @@ -504,7 +504,68 @@ void LLFlatListView::onItemMouseClick(item_pair_t* item_pair, MASK mask) //*TODO find a better place for that enforcing stuff if (mKeepOneItemSelected && numSelected() == 1 && !select_item) return; - + + if ( (mask & MASK_SHIFT) && !(mask & MASK_CONTROL) + && mMultipleSelection && !mSelectedItemPairs.empty() ) + { + item_pair_t* last_selected_pair = mSelectedItemPairs.back(); + + // If item_pair is already selected - do nothing + if (last_selected_pair == item_pair) + return; + + bool grab_items = false; + pairs_list_t pairs_to_select; + + // Pick out items from list between last selected and current clicked item_pair. + for (pairs_iterator_t + iter = mItemPairs.begin(), + iter_end = mItemPairs.end(); + iter != iter_end; ++iter) + { + item_pair_t* cur = *iter; + if (cur == last_selected_pair || cur == item_pair) + { + grab_items = !grab_items; + // Skip last selected and current clicked item pairs. + continue; + } + if (!cur->first->getVisible()) + { + // Skip invisible item pairs. + continue; + } + if (grab_items) + { + pairs_to_select.push_back(cur); + } + } + + if (select_item) + { + pairs_to_select.push_back(item_pair); + } + + for (pairs_iterator_t + iter = pairs_to_select.begin(), + iter_end = pairs_to_select.end(); + iter != iter_end; ++iter) + { + item_pair_t* pair_to_select = *iter; + selectItemPair(pair_to_select, true); + } + + if (!select_item) + { + // Item was already selected but there is a need to update last selected item and its border. + // Do it here to prevent extra mCommitOnSelectionChange in selectItemPair(). + mSelectedItemPairs.remove(item_pair); + mSelectedItemPairs.push_back(item_pair); + mSelectedItemsBorder->setRect(getLastSelectedItemRect().stretch(-1)); + } + return; + } + if (!(mask & MASK_CONTROL) || !mMultipleSelection) resetSelection(); selectItemPair(item_pair, select_item); } |